CVE-2020-15664
thunderbird - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.37%
Description
By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, Firefox ESR < 78.2, and Firefox for Android < 80.
How to fix CVE-2020-15664
To remediate CVE-2020-15664, upgrade the affected package to a fixed version below.
- —upgrade to 68.12.0esr-1 or later
- —upgrade to 68.12.0esr-1~deb9u1 or later
- —upgrade to 68.12.0esr-1~deb10u1 or later
- —upgrade to 1:68.12.0-1 or later
- —upgrade to 1:68.12.0-1~deb9u1 or later
- —upgrade to 1:68.12.0-1~deb10u1 or later
Is CVE-2020-15664 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 68.12.0esr-1
- from 0, < 68.12.0esr-1~deb9u1
- from 0, < 68.12.0esr-1~deb10u1
- from 0, < 1:68.12.0-1
- from 0, < 1:68.12.0-1~deb9u1
- from 0, < 1:68.12.0-1~deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |